1985 civic si

Wow, first post, joined today!:woo:bub rub, lol
Anyhow I was looking for some insight on a 1985 civic si
The motor is locked up, supposedly... but they are selling it for 600 and it has very little to no rust and it has 99-00 si rims
I usually only buy 88+ but this one is in awesome shape!

I may just rebuild it if it isn't in horrible shape.. I know my swap options are extremely limited to the amount of money i have to spend and the amount of mass customization i (don't) want to do.... An old integ motor, and maybe a b16a1... with the mass customization option in full play, of course.
Would appreciate the feedback..